copy method
Creates a shallow copy of this parser.
Overridden in subclasses to return an instance of the specific parser type.
Implementation
@override
CastParser<R, S> copy() => CastParser<R, S>(delegate);
Creates a shallow copy of this parser.
Overridden in subclasses to return an instance of the specific parser type.
@override
CastParser<R, S> copy() => CastParser<R, S>(delegate);